Can’t share music with iTunes either.

I’ve set up iTunes on the desktop machine and added all my mp3’s so that they are all in one place. I’ve enabled sharing and look for sharing. The help says at this point a Shared image appears under source. Unfortunately the image in the online help is missing so I can’t see what its meant to look like AND the shared files doesn’t appear. The other bad thing is that it uses (yet another) audio format, AAC, which naturally doesn’t work with much else so its yet another place to store music in. Not impressed.